Fig. 6

Species composition of Orthogroups (OG) with different annotations. The bar charts indicate the percentage of OGs with the species composition drawn below. The colours identify OGs with different annotations (see legend top right). The exact numbers and percentages for each annotation and species composition can be found in Additional file 11: Tab. S7. The two inset tables give the results of permutation tests to investigate if fewer or more than the expected number of OGs with a particular annotation contain all four species (i.e. are complete, table on the left) or contain only M. lignano and M. spirale (table on the right) (see Methods for details). In both tables, the first column gives the total number of OGs with the annotation and the second column gives the number of OGs that are complete (left table) or restricted to M. lignano and M. spirale (right table). The third column gives the expected number of OGs derived from 100,000 samples from all OGs and the corresponding 95% confidence interval. Symbols indicate if the observed value deviates from the expected value (* = significantly smaller than expected, † = significantly larger than expected, ns = not significantly larger or smaller). All significant p-values are < 0.01, all tests were two-tailed, and corrected for multiple comparisons